There are up to 128 user function keys. The defaults supplied with your COBOL system differ on different operating environments, but some keys are standard.
Your keyboard might not have these keys, but if they are there, they should be configured as above. Additionally, the following user function keys might be defined:
| Keystroke | User Function Key Number |
|---|---|
| Shift+F1 - Shift+F10 | 11 - 20 |
| Ctrl+F1 - Ctrl+F10 | 21 - 30 |
| Alt+F1 - Alt+F10 | 31 - 40 |
| Alt+1 - Alt+9 | 41 - 49 |
| Alt+0 | 50 |
| Alt+- | 51 |
| Alt+= | 52 |
| PgUp | 53 |
| PgDn | 54 |
| Ctrl+PgUp | 55 |
| Ctrl+PgDn | 56 |
| Alt+A - Alt+Z | 65 - 90 |
| F11 | 91 |
| F12 | 92 |
| Shift+F11 | 93 |
| Shift+F12 | 94 |
| Ctrl+F11 | 95 |
| Ctrl+F12 | 96 |
| Alt+F11 | 97 |
| Alt+F12 | 98 |